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I apply a diff using Tools -> Apply Diff Patch. A dialog pops up saying the patch was not applicable. Then another one 10 seconds later. Then another one about 30 seconds later. So, I think that it wasn't applied. A minute later, a dialog pops up saying the patch *was* partially applied. Would I like to view changes? I click "yes" and the attached exception is thrown. (Aside from exceptions, why on earth is the diff functionality this...weird? This is not usable, at all. At least do all the changes, *then* show a dialog with better information than "something went wrong").
There is already issue #27424 to provide a better information when apply patch fails. I'll check the behavior of the dialog...
Scheduling for promotion D.
The exception is not attached.... I was not able to reproduce any errors like this, issue #27424 is there for a better behavior of "Apply Patch".